United Kingdom

meanings. One meaning refers to a cut of ham (they type one might cook to enjoy at
a meal). Other meanings refer to the game of backgammon. But the one I think fits here in your op is identified as:

"People on the internet have been sniggering about ‘gammon’ – a term for Brexit-obsessed, purple-faced men – for months.

The term, loosely, refers to the sort of pink-faced right-wing gentleman who uses phrases such as ‘political correctness gone mad’ and really dislikes cyclists, and has been used widely online for almost a year."

https://metro.co.uk/2018/05/14/gammon-everyones-worked-cured-ham-7545220/

Oh, so we're talking about Tory/Fascist Twits being called 'gammons' (my first clue
was the name 'Nigel Farage' on one of the tweets copied in the original op). And of
course 'gammons' practice 'gammony'. Of course they should be ridiculed. Well done, Soph0571.

So I think I'm up to speed here. Now for some reason I fancy a nice piece of ham
for breakfast.

Here are my search results for 'gammony', just in case anyone has the time and
curiosity:

https://duckduckgo.com/?t=ffab&q=what+is+gammony&ia=definition